汇编标志位（国外英文资料）.docVIP

汇编标志位（国外英文资料） Assembly mark bit. TXT Review = dont fail, dont review = fail to pass the exam, so the review + review = not fail, fail, extract the common factor, review = (1 +) not (+ 1) fail to pass the exam. So, you have to go to review = fail Carry carry flag flag (cf) OF NV: overflow UP, UP the DN: down DI: disable interrupt EI: enable interrupt PL: plus NG: negative NZ: no zero ZR: zero NA: no assistant carry AC I think its a little odd NC: no carry CY Assembly mark: Logo marks 1 0 OF OV NV (overflow mark) DF (direction) UP DN IF (interrupt flag) DI EI SF (symbols) PL NG ZF (zero) NZ ZR AF NA AC (auxiliary carry flag bits) PO PE PF (odd-even mark) CF (carry) NC CY The OVerflow (yes/no) OV OVerflow NV Not OVerflow The DF direction (reduction/increment) DN DowN UP UP IF Interrupt (allow/close), EI Enable Interrupt DI Disable Interrupt SF (NeGative/positive) NG NeGative PL PLus ZF ZeRo (yes/no) ZR ZeRo NZ Not ZeRo The AF assist Carry NA Not Auxiliary PPF (yes/no) PE is Even PO Parity C: c (yes/no) CY CarrY NC Not CarrY English: NV: overflow UP, UP the DN: down DI: disable interrupt EI: enable interrupt PL: plus NG: negative NZ: no zero ZR: zero NA: no assistant carry AC : yes, it is NC: no carry CY Familiarize yourself with the FLAGS mark: The OV, NV, the overflow mark OF = 1 or 0, indicates that the operation results are not overflowing. When the arithmetic result is beyond the bounds of the signed number (the range of the eight band symbols is -128 - + 127,16 is -32728 - + 32767). The DN, UP, which indicates that a DF = 1 or 0, indicates that the string operation is done in a way that is reduced or added by the address. The EI or DI is the interrupt flag IF = 1 or 0, indicating that the CPU can respond to a blocking interrupt request. The state of the IF is not affected by the unmasking interrupt and internal interrupts. The NG, PL, or symbol mark bits SF = 1 or 0, indicates that the result of the operation is negative (the highest level is 1) or positive (the h